police and ohi ice chasing down a car in columbus, ohio. the chase lasted 20 minutes snaking through neighborhoods and highways. four people taken into custody. they are calling this an illegal immigration investigation. jenna: a follow-up now on a rapidly developing story out of indianapolis. police are serving search warrants in a deadly explosion that ripped through a residential neighborhood hours after police announced that they are treating this case as a murder investigation. rick has more. >> reporter: we've been tracking this story since it happened a week and a half ago. we watched it as it was being treated as a tragic accident that killed two people and investigators shifted and called it a murder investigation beginning this week. and now we can tell you from local reports there in indianapolis that two people have actually been taken into custody in connection with the blast at this house here that affected so many other houses in this neighborhood. not clear who these people are or whether they have been formally arrested and